(Si) 5-2y(AlP) y alloys assembled on Si(100) from Al-P-Si 3 building units

Research output: Research - peer-reviewArticle

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Abstract

An original class of IV/III-V hybrid (Si) 5-2y(AlP) y/Si(100) semiconductors have been produced via tailored interactions of molecular P(SiH 3) 3 and atomic Al yielding tetrahedral Al-P-Si 3 building blocks. Extensive structural, optical, and vibrational characterization corroborates that these units condense to assemble single-phase, monocrystalline alloys containing 60%-90% Si (y = 0.3-1.0) as nearly defect-free layers lattice-matched to Si. Spectroscopic ellipsometry and density functional theory band structure calculations indicate mild compositional bowing of the band gaps, suggesting that the tuning needed for optoelectronic applications should be feasible.

LanguageEnglish (US)
Article number022101
JournalApplied Physics Letters
Volume100
Issue number2
DOIs
StatePublished - Jan 9 2012

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ellipsometry
tuning
density functional theory
defects
interactions

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

(Si) 5-2y(AlP) y alloys assembled on Si(100) from Al-P-Si 3 building units. / Watkins, T.; Jiang, L.; Xu, C.; Chizmeshya, A. V G; Smith, D. J.; Menéndez, J.; Kouvetakis, J.

In: Applied Physics Letters, Vol. 100, No. 2, 022101, 09.01.2012.

Research output: Research - peer-reviewArticle

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